How to find the # of possilibities?

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SUMMARY

The discussion focuses on calculating the number of possibilities for a specific format of combinations consisting of a number, a letter, and another number (number-letter-number). The calculation is straightforward: with 10 possibilities for each number (0-9) and 26 possibilities for the letter (A-Z), the total number of combinations is determined by multiplying these values together, resulting in 2600 unique combinations. The distinction between permutations and combinations is acknowledged, emphasizing the importance of order in this context.

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  • Knowledge of the English alphabet (26 letters)
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Gary King
If I have a combination of numbers and letters (number-letter-number - examples: 1j5, 3f5) then how can I find the number of possibilities?

So, number-10 possibilities, letter-26 possibilities, number-10 possibilities.

Thanks!
 
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If we're talking permuataions (edited to add I know you siad combinations which are different, but you implied some sort of order) here it's simply 10*26*10 = 2600
 
Last edited:
ah yes, it's all coming back to me now :) thanks
 

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